The Tale of Tsar Saltan (Skazka o care Saltane in transliteration) is an opera in four acts (six tableaux) with a prologue, by Nikolai Rimsky-Korsakov to a Russian libretto by Vladimir Ivanovich Belsky, based on the poem of the same name by Aleksandr Pushkin. The full title of both the opera and the poem in English is The Tale of Tsar Saltan, of his Son the Renowned and Mighty Bogatyr Prince Gvidon Saltanovich, and of the Beautiful Princess-Swan.